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Патент USA US2408241

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Sept 24, 1946. '
' 2,408,240
Filed April 15, 1944
4 Sheets-Sheet 1. 4
‘ Inventor
.Oeosu E. Srwvz, _
Sept. 24, 194e.'
,0, E, STONE
' 2,408,240
Filed April-~15, 1944
4 Sheets-Sheei 2
‘5 '
Mwvmm ;
Sept- 24,1946-
Filed April 15, 1944,
4 Sheets-Sheet 3 -
0/905“ E Sroms,
Sept.- 24, 1946.
.Q. E. STONE ‘
2,408,240 ‘
Filed April 15, 1944
4 Sheets-Sheet 4
Patented ' Sept. 24, 1946
\' Ordell E. Stone, Lake Mills, Wis.
Application April 15, 1944, Serial No. 531,167
2 Claims. (01.- 15‘——88)
This invention relates to new and useful ime.
‘ provements inwasliing apparatus and more par
ticularly to a machine for washing sanitary‘ pipes
such as are used in dairies, creameries and other
food handling plants.
The principal object of‘ the "present invention is
to provide a machine ‘capable of accommodating
most common sizes of pipes.
able packing means) -for holding these parts in
7 fixed. position with respect to the tank wall.
A check valve 25 is provided on the remain
ing end of the tube 23, so that air can be bled
from the pipe section 2| while air is being sup
plied to the pipe section 20 with the valve ele
ment I‘! in the position shown in Figure 3. With
the valve element turned 90° from the position
shown, air is bled from pipe section 20 while air is
Another important object of the invention is to
provide a machine which will not only be positive 10 being supplied to pipe section 2 l.
The pipe section 20 connects to a Ti?tting 26
acting and time-saving but highly e?icient in
from which an elongated cylinder 21 extends,
thoroughly cleaning pipes.
substantially the full length of the tank 5 and
Other objects and advantages of the invention
at the outside thereof, this cylinder being capped
will become apparent to the reader of the follow~
at its outer end as at 28. The remaining end.
ing description.
of the T-‘?tting 26 has a threaded plug 29 there
In the drawings:
in and in this plug is a packing gland 3!] including
Figure l is a side elevational View of the ma
a compression screw 31. The compression screw
3| and the plug-29 have openings therethrough
Figure 2 is a fragmentary top‘ plan view.
to accommodate a wire or cable 32, which at one
Figure 3 is a horizontal sectional view taken
end connects to an eye 33 on a piston 34 operat
substantially on the line 3—3 of Figure 1.
ing in the cylinder 21. This cycle extends over a >
Figure 4 is a fragmentary vertical sectional
pair of pulleys 35, 36 mounted within a frame .
view taken on the line 4-4 of Figure 1.
structure 31.
Figure 5 is a perspective view showing one of
the pipe supporting blocks.
Referring to the drawings wherein like numer
als designate like parts, it can be seen that nu
meral 5 denotes an elongated tank for contain
ing a suitable washing solution and this tank is
supportedrby corner legs 6,.preferaJb-ly of angle’
iron construction. Longitudinal members 1 con
nect the legs 6 and platforms 8, 9 bridging these
members ‘I serve to support an electric motor,
which by drive means H drives a compressor l2,
which has a pipe connection l3 with a storage
tank [4 supported by members ‘I. It is prefer
able that some form of pressure responsive de
25 ' The other end of the cable 32 extends through
a packing gland 38 and a compression screw 39
thereforythis gland being located in a plug 40 in
one end of a second T-?tting 4| located at the
outer end of the pipe section 2|.
A threaded tube 42 extends from the remain
ing end of the T-?tting 4| and through an open
ing in the adjacent end wall of the tank 5. Nuts
43, 44 are provided on this threaded tube 42 and
suitable packing means 45 is provided between
35 the nuts and the adjacent sides of the tank wall.
At the tank end of the tube 42v a rubber cup
or cone 46 is secured thereto by a clamp 41. It
vice be employed in conjunction with the reser- ' will ‘be noted here, (see Figure 3) that while one
end of the cable 32 connects to a piston 34, the
voir M for cutting on or shutting off the com—
pressor I2 in order to hold the pressure in the 40 remaining end connects to a piston 48 by way of
an eye 49. The piston 48 has a leather or rubber
reservoir I4 constant.
Leading from the reservoir 14 is an air conduit
wiper 5|] at its outer end-and this end of the
piston 48 is connected by a suitable connector 51
l5 which connects with a three-way valve it, this
to a brush structure which includes a core 52 and
valve [6. including a rotatable Valve element H, 45 bristles 53‘ at the periphery thereof. _
which is adapted to be rotated by a stem I8 and
Along the side walls of the tank 5 are angle
hand lever [9. (See Figure 1.)
iron members 54 for supporting blocks 55. One of
From opposite sides of‘the valve 16 pipe sec
these blocks is shown in Figure 5, the same hav
tions 20, 2| extend. To one of the remaining two
ing a small transverse groove 56 at its top side and
sides of the‘ valve I6, the conduit l5 connects, 50 a larger pipe receiving groove 51 across its bot
while the remaining sides of the valve receives a
tom side. It is preferable that the angle iron
bushing 22, internally threaded to accommodate
members 54 be in the form of spaced sections, so
that conveniently; the blocks 55 .can be dropped
one end portion of a short threaded tube 23
which is disposed through one end of the tank
and inverted whenever the need requires. The
5 and has nuts 24 thereon (with preferably suit 55 blocks 55 can be shifted along the angle iron
members to accommodate pipe of various lengths.
Having described the invention, what is claimed
With the different size grooves, di?ferent size
pipes can be accommodated.
In the operation of the machine, it can be seen
that the ‘desired solution is ?rst placed in the
as new is:
tank 5.
in said solution, a brush in said tank for recip
1. In a pipe-washing machine, a tank for a
washing solution, means in said tank for sup
porting a pipe in horizontal position immersed
It is presumed that ‘a. proper pressure
rocation in said pipe to force the solution through
exists in the reservoir [4. The pipe to be cleaned
the pipe and ?tting in said pipe to brush the in
is fed upon the blocks 55 and shifted to a posi
side thereof, and means for reciprocating said
tion permitting the brush 52 to be inserted in one
end thereof, the pipe being shown in Figure 3 10 brush comprising a piston ‘?tting in said pipe and
operatively connected to the brush, a cylinder ex
and denoted by reference character A. The pipe
tending alongside the tank, a second piston in
is further shifted until the end receiving the
said cylinder, pneumatic means for exerting pres
brush is brought snugly against the resilient cup ~
sure against .the pistons alternately to move the
45 so that no air pressure will be lost.
same in opposite directions relatively, and oper
The valve element I1 is now rotated, for in
ating connections between said pistons whereby
stance, to the position shown in Figure 3 so that
movement of either piston under pneumatic pres
air is delivered to the cylinder 21. This Will force
sure against the same causes the other piston to
.the piston 34 along the cylinder 21 and air will
move in an opposite direction relative to the di
be expelled through a vent 59, in advance of the
piston 34. The vent 59 is inwardly from the cap 20 rection of movement of the pressure-operated
28, so that as the piston 3% passes the vent 59 the
piston will be brought to a gradual stop due to the
‘2. In a pipe-washing machine, a tank for a
cushioning e?ect of the air that is trapped be
washing solution, means in said tank for sup
porting a pipe in horizontal position immersed in
tween the .cap and the vent 59.
The reverse operation of the machine takes
said solution, a brush in said tank for reciproca
tion in said pipe to force the solution. through
place when the valve element I‘! is turned 90°
the pipe and ?tting in said pipe to brush the in
and air is delivered against the piston 48. The
side‘ thereof, means for reciprocating said brush
brush 52 is driven along the pipe A, as the piston
34 returns to a position adjacent the T-?-tting 26
comprising a piston ?tting in said pipe and opera
during this operation of the piston 34 returning, 30 tively connected to the brush, a cylinder extend
ing alongside the tank, a second'piston in said
the air in advance of the same is expelled by way
cylinder, means for moving said pistons in one
of the check valve 25. This back and forth mo
tion of the brush 52 can be repeated as many
and the same direction alternately under pneu
times as thought-necessary.
matic pressure, and means for causing each pis
While the foregoing speci?cation sets forth the 35 ton during its movement in said direction to im
part movement to the other piston in a relatively
invention in speci?c terms, it is to be understood
that numerous changes in the shape, size and ma—
opposite direction.
terials may be resorted to without departing from
the spirit and scope of the invention as claimed
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